I made a candling contraption yesterday with the intentions of checking my eggs in the incubator(my first batch ever) and I tested the candler on some of my sex links brown eggs from the fridge, worked great. Then I went to the incubator and got a few of the EE eggs in there and I couldnt see even the slightest bit of light into the egg?? Is it something to do with the blue eggs? darker shell color to see through? I am guessing I just need a higher wattage bulb. I used a 75w(highest I could find at the house) and that worked good on the brown eggs. What wattage is reccommended? I used a round cardboard oatmeal can, mounted a socket onto the plastic lid and covered the plastic with dark blue construction paper to not let any light get out, then I drilled a hole in the bottom that was not quite a 1/4" diameter for the light to get thru. By setting my brown eggs on the hole you can see right into them. But the blue, green, and khaki eggs i couldnt see a thing.